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Journals and Conferences
In the title compound, C(14)H(13)N(5), the pyrazole ring is disordered over two orientations in a 0.571 (10):0.429 (10) ratio and the dihedral angle between the pyridazine ring and the benzene ring is 28.07 (10)°. In the crystal, pairs of N-H⋯N and C-H⋯N hydrogen bonds link the mol-ecules into dimers, with the aid of a crystallographic twofold axis. The… (More)
In the title compound, C(9)H(9)ClN(4), the dihedral angle between the aromatic rings is 6.25 (9)°. The whole mol-ecule is approximately planar (r.m.s. deviation = 0.070 Å). In the crystal, π-π inter-actions between the centroids of the pyridazine rings [separation = 3.5904 (10) Å] occur.
In the title compound, C(10)H(10)ClN(5)O(2), the dihedral angle between the aromatic rings is 0.16 (9)°. Two S(6) ring motifs are formed due to intra-molecular N-H⋯N and N-H⋯O hydrogen bonds. In the crystal, inversion dimers linked by pairs of N-H⋯N hydrogen bonds generate R(2) (2)(14) [or R(4) (4)(10) via the intra-molecular hydrogen bonds] ring motifs.… (More)